Calculating machines



Filed July 22, 1964 March 28, 1967 F.J. CALDWELL ETAL 7 3,311,300

CALCULATING MACHINES 59 Sheets-Sheet 1 INVENTOQS FRANCES J.CALDWELL RICHARD D.JOYCE a CLARENCE L.COLEMAN THEM Z ATTORNEYS March 28, 1967 F.J. CALDWELL ETAL CALCULATING MACHINES 59 Sheets-Sheet 2 Filed July 22, 1964 L m & 4 E SWMQ K mm WC .L N D WS M UME INHR M m FWC Y B mm THEIR ATTORNEYS F. J. CALDWELL ETAL 3,311,3@@

March 28, 1967 CALCULAT ING MACHINES 59 Sheets-Sheet 5 w aria/1Z9, a gag Filed July 22, 1964 I23 INVENTORS FRANCIS J. CALDWELL RICHARD DLJOYCE &

CLARENCE L. COLEMAN BY fl Afl THEIR ATTORNEYS F. J. CALDIWELL ETAL 3,311,300

March 28, 1967 CALCULATING MACHINES Filed July 22, 1964 59 Sheets-Sheet FIG. I5

ENTER FIG. l6

NON-PRINT CLEAR Ill March 28, 1967 Filed July 22, 1964 F. J. CALDWELL ETAL 3,311,300

CALCULATING MACHINES 39 Sheets-Sheet 5 97 & I02

011% 5 0 8a '55 O O OO O OO 00 O 106 I3 n4 FIG.58 I

3L1 o O n cl O A O o 0 I 33 2 O8 OKB/ o r (H4O Bo FIG. 20

0 0 O o 0 ||7 O 0 o o o o lNVENTORS FRANCIS J. CALDWELL RICHARD D. JOYCE & CLARENCE L. COLEMAN THEUR ATTORNEYS March 28, 1967 Filed July 22} 1964 FIG. 2|

59 Sheets-Sheet 6 O o o O o o O 08 O 7 0 o O o 000 o o \-o o o 00 c 0 i Q 00 000 O |O3\. 0 O O O O FIG 24 THEIR ATTOR NEYS CALCULATING MACHINES Filed July 22, 1964 59 Sheets Sheet 7 01:05 01:30 A22 0: Z Z ODUODUUMDU 00 011000 [:J

O O O W FL H H R O I 120 0 o o 0 0422 0 O O m j Q -42: O O n 0 FL 0 5 *INVENTORS-L FRANCIS J.CALDWELL RICHARD 0. JOYCE &

CLARENCE L.COLEMAN THEIR ATTORNEYS CALCULATING MACHINES 59 Sheets-Sheet 8 Filed July 22, 1964 INVENTORS FRANCIS J. CALDWELL RICHARD D. JOYCE &

CLARENCE L.COLEMAN BY %%w% 4 THEIR ATTORNEYS March 28, 1967 V F.J. CALDWELL ETAL 3,311,300

CALCULAT ING MACHINES Filed July 22, 1964 59 Sheets-Sheet 9 FIG. 32

INVENTORS FRANCIS J. CALDWELL RICHARD D. JOYCE 8 CLARENCE L. COLEMAN Wm a 7% //M%m THEIR ATTORNEYS March 28, 1967 Filed July 22, .1964

FLJ. CALDWELL ETAL CALCULATING MACHINES 59 Sheets-Sheet 1O CONTROL AMOUNT KEYBOARD KEYBOARD FIG.36 FIG.'37 FIG. 35

CONTROL cIRcuITs SELECTOR ADDER FIG.48. FIG.49

M K A REGISTER REGISTER REGISTER 4 FIG.5O FIG.5I FIG.52

INDICATOR INDICATOR INDICATOR INVENTORS FRANCIS J. CALDWELL RICHARD D. JOYCE BI CLARENCE L. COLEMAN THEIR ATTORNEYS FIG. 36

March 28, 1967 F.J.CALDWELL ETAL 3,311,300

CALCULATING MACHINES Filed July 22, 1964 59 Sheets-Sheet '11 m N o 00 O In N N a g m m 03 l0 w "1 0 r0 r m 00 M 8 l r 1 (.0 N Z) (O (O INVENTORS P; FRANCIS J. CALDWELL RICHARD 0. JOYCE a CLARENCE L. COLEMAN In BY (D 2% WM THEIR ATTORNEYS FIG. 37

March 28, 1967 F.J. CALDWELL ETAL 3 5 CALCULATING MACHINES Filed July 22, 1964 59 Sheets-Sheet 12 INVENTORS FRANCIS J.CALDWELL RICHARD D. JOYCE 8: CLARENCE L. COLEMAN THEIR ATTORNEYS I March 28, 1967 F. J. CALDWELL ETAL 3,311,300

CALCULATING MACHINES Filed July 22, 1964 9 Shegts-Shet 15 FIG 38 CLOCK SCHEMATICI FlG.39

I SEQUENCE SHIFT COUNTER COUNTER FIG-.4OAV,B,C FIG.4|A,B

CONTROL Y SYMBOL Row KEYBOARD PRINTER LOGIC F REGISTER H645 F|G.42A,B

FIG.43 FIG.44

, CONTROL M/D cou TER CIRCUITS E INVENTORS FRANCIS J.GALDWELL RICHARD D.JOYCE a CLARENCE L.COLEMAN THEIR ATTORNEYS CALCULATING MACHINES Fil ed July 22, 1964 FIG. 40A

59 Sheets-Sheet 15 March 28, 1967 FI.IJ. CVALDWE LL ETAL 3,311,300

CALCULATING MACHINES 59 Sheets$heet'l6 Filed July 22, 1964 M I E m j m E O Q h N I. J R 4 O 6 w o T 2 8 D M 2 WW! R I N w 0 A T 2 LM .M E m Y B m MC B 3 M 0 5 m 4 v mm b c d R rw w w MA 6 5 5 5 l d Illlll I. F F w I I I I I I w w m 3 T f 5 N E 0 V d um N 6 2 I d n m 6 2 2 .d 4% m 5 a 2 1- IL.

March 28, 1967 F..]. CALDWELL ETAL 3,311,300

CALCULATING MACHINES Filed July 22, 1964 59 Sheets-Sheet 17 FIG. 40C

INVENTORS FRANCIS J. CALDWELL RICHARD D. JOYCE a CLARENCE L.COLEMAN THEIR ATTOR NEYS March 28, 1967 F. J. CALDWELL ETAL 3,311,300 CALCULATING MACHINES 59 Sheets-Sheet 18 Filed July 22, 1964 INVENTORS FRANCIS J. CALDWELL RICHARD o. JOYCE a CLARENCE L.co|.EMAN

THEIR ATTORNEYS March 28, 1967 CALDWELL ETAL 5 3 CALCULATING MACHINES Filed July 22, 1964 59 Sheets-Sheet 19 INVENTORS FIG. 4| B FRANCIS J. CALDWELL RICHARD a. JOYCE a v CLARENCE L.COLEMAN BY Wm THEIR AT TORN EYS March 28, 1967 F. J. CALDWELL ETAL CALCULATING MACHINES 59 Sheets-Sheet 20 Filed July 22, 1964 mmv mv hmw mOm

INVENTORS FRANCIS J. CALDWELL RICHARD D. JOYCE 8a CLARENCE L. COLEMAN 3 KM Q mmm

an fiqwi W e/d d THEIR ATTORNEYS 

1. IN A PRINTING HYDRAULIC CALCULATING APPARATUS CAPABLE OF PERFORMING ADDITION, SUBTRACTION, MULTIPLICATION, AND DIVISION OPERATIONS, THE COMBINATION INCLUDING (A) A TEN-KEY KEYBOARD HAVING A PLURALITY OF AMOUNT AND CONTROL KEYS EACH GENERATING, WHEN ACUATED, A PLURALITY OF FLUID PRESSURE SIGNAL REPRESENTING A PREDETERMINED BINARY DIGIT, SAID CONTROL KEYS INCLUDING AN ADD KEY; (B) A SOURCE OF FLUID PRESSURE SIGNALS; (C) KEYBOARD, MEMORY, AND ACCUMULATING SHIFT REGISTERS EACH HAVING A PLURALITY OF DIGIT STAGES COMPOSED OF FLUID PRESSURE RELAYS CAPABLE OF BEING ORIENTATED TO STORE FLUID PRESSURE SIGNALS REPRESENTING BINARY DIGITS; (D) PRINTING MEANS ADAPTED FOR PRINTING THE DECIMAL EQUIVALENT OF THE BINARY DIGITS STORED IN SAID SHIFT REGISTERS; 